Evaginations

There are 2 primary groups of anatomies specializing in gas exchange: 1. organs formed as evaginations (B), e.g., gills; 2. organs formed as invaginations (C), e.g., lungs. ❋ AYDIN (2009)

Diverticulum - la: an oft-shoot from a vessel or from the alimentary canal usually blind or sac-like: applied to the caecal tubes or pouches: any extensions or evaginations of the hypodermic. ❋ John. B. Smith (N/A)

(Remak's _Hornblatt_), and gives origin to the medullary tube with all its evaginations, and to the skin with all its derivatives and pockets. ❋ Unknown (N/A)

These two head-cavities are the only ones to be seen, in this animal, unless the small evaginations from their walls represent other cavities fused with these. ❋ C. M. [Illustrator] Reese (N/A)

—In the outer part of the intermediate cell-mass, immediately under the ectoderm, in the region from the fifth cervical to the third thoracic segments, a series of short evaginations from each segment grows dorsalward and extends caudalward, fusing successively from before backward to form the pronephric duct. ❋ Unknown (1918)

The original evaginations form a series of transverse tubules each of which communicates by means of a funnel-shaped ciliated opening with the celomic cavity, and in the course of each duct a glomerulus also is developed. ❋ Unknown (1918)

Three others appear as disk-like evaginations on the surface of the vesicle; the central parts of the walls of the disks coalesce and disappear, while the peripheral portions persist to form the semicircular ducts; of these the superior is the first and the lateral the last to be completed (Fig. 902). ❋ Unknown (1918)

[Quit] [trying to] [evaginate] me! ❋ Buce (2005)

" I used my [evagination] when i watched 'Backdoor [Sluts] 9' " " [My mom] caught me using my evagination last night." ❋ 50_yearold_virgin_ :) (2009)